All of the following are components of scene size-up except:
gathering an initial impression of the situation.
(b
calling for additional resources as needed.
looking for situations that are hazardous.
d
checking for responsiveness.

Checking for responsiveness.

Explanation:

Scene size-up refers to the beginning of the patient's assessment when he seeks medical attention. In this first contact, the patient's ability to communicate and answer the questions of the medical team attending the patient is assessed. Based on the patient's ability to respond, the medical team can establish the best care, ensuring that the patient has the best treatments and is comfortable and satisfied.

aed pads should be placed in the middle of the child's chest. this ensures that the electricity can properly run through the child's body and hopefully cause his/her heart to start again. hope this : )